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This article gives an overview of liberalism and radicalism in Spain. It is limited to liberal and radical parties with substantial support, mainly proved by having been represented in parliament. The sign ⇒ denotes another party in that scheme. For inclusion in this scheme it is not necessary that parties label themselves as a liberal or radical party.


In the nineteenth century, liberalism was a major political force in Spain, but as in many other continental European countries care must be taken over the use of labels as this term was used with different meanings (this is discussed in the article on Radicalism (historical).

As in much of Europe, the nineteenth-century history of Spain would largely revolve around the conflicts between the three major liberal currents - radicalism; progressive classical liberalism, or conservative classical liberalism. While all three rejected the Catholic, traditionalist, and absolutist Old Regime, each had a different perspective on the urgency and degree to which state and society needed reforming to modernize the values and institutions.


Each of the following sections describes an element of Spanish liberalism and radicalism, mostly beginning with the 19th century.

From Liberals to Liberal Fusionist Party

Main article: Spanish Constitution of 1812

Main article: Trienio Liberal

A common grave for six Liberal politicians from the 19th century at the Panteón de Hombres Ilustres, Madrid.

Democratic Party

Liberal Union

Federal Republican Party

From Democratic Radical Party to Centralist Party

Possibilist Democratic Party

Democratic Progressive Party

Dynastic Left

Liberal Democratic Party

Republican Union (1906)

Monarchist Democratic Party

Radical Republican Party

Liberal Left

From Republican Action to Republican Left

Radical Socialist Republican Party

From Democratic Radical Party to Republican Union

Democratic Convergence of Catalonia

Democratic and Social Centre


Union, Progress and Democracy

Liberal leaders

Liberal thinkers

In the Contributions to liberal theory the following Spanish thinkers are included:

See also